(19)
(11) EP 4 512 350 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.05.2025 Bulletin 2025/19

(43) Date of publication A2:
26.02.2025 Bulletin 2025/09

(21) Application number: 25150787.7

(22) Date of filing: 13.08.2020
(51) International Patent Classification (IPC): 
A61B 17/22(2006.01)
(52) Cooperative Patent Classification (CPC):
A61B 17/2202; A61B 17/22022; A61B 2017/22025; A61B 2017/22062
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 24.09.2019 US 201962904839 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
23208960.7 / 4295788
20764208.3 / 4034004

(71) Applicant: Shockwave Medical, Inc.
Santa Clara, CA 95054 (US)

(72) Inventors:
  • VO, Khanh
    Santa Clara, 95054 (US)
  • GALLEGO, Jonathan
    Santa Clara, 95054 (US)
  • PHAN, Huy
    Santa Clara, 95054 (US)

(74) Representative: Reddie & Grose LLP 
The White Chapel Building 10 Whitechapel High Street
London E1 8QS
London E1 8QS (GB)

   


(54) LOW PROFILE ELECTRODES FOR A SHOCK WAVE CATHETER


(57) The present invention provides a system and method for treating tight, hard-to-cross calcified lesions in which an angioplasty balloon (102) is used to dilate the lesions and provide shock waves to restore normal blood flow in a patient's artery. An exemplary device (100) includes an elongated tube (104) and a balloon (102) wrapped circumferentially around the tube (104) and sealed to a distal end of the tube (104). During treatment, the device (100) is advanced into a patient's vasculature and the balloon (102) is inflated with conductive fluid such that the balloon (102) is fixed to walls of the vasculature proximal to the calcified lesion. The balloon (102) includes at least one low-profile emitter positioned near the distal end of the balloon (102), which may be activated to generate shock waves to break loose calcifications in the lesion. After calcium in the tight lesion has been modified, the balloon (102) can be deflated and advanced further into the lesion to continue treatment.







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Search report